12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
Arabic to Roman
Arithmetic Numbers
Arrows
Ascending Primes
ASCII Table
brainfuck
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
1,551st
CSS Colors
Cubes
Day of Week
Diamonds
Divisors
4,315th
Emirp Numbers
Emirp Numbers (Long)
Emojify
Evil Numbers
Evil Numbers (Long)
Factorial Factorisation
Farey Sequence
Fibonacci
2,647th
Fizz Buzz
Foo Fizz Buzz Bar
2,066th
Fractions
Gijswijt’s Sequence
Happy Numbers
Happy Numbers (Long)
Inventory Sequence
ISBN
Kolakoski Constant
Kolakoski Sequence
945th
Leap Years
3,135th
Levenshtein Distance
Leyland Numbers
ln 2
258th
Look and Say
Lucky Numbers
Morse Encoder
Niven Numbers
Niven Numbers (Long)
Number Spiral
Odious Numbers
2,666th
Odious Numbers (Long)
Ordinal Numbers
Pangram Grep
Pascal’s Triangle
Pernicious Numbers
Pernicious Numbers (Long)
Prime Numbers
1,359th
Prime Numbers (Long)
1,060th
Quine
1st
Recamán
Repeating Decimals
Reverse Polish Notation
Rijndael S-box
233rd
Roman to Arabic
Rule 110
SI Units
Sierpiński Triangle
Smith Numbers
Spelling Numbers
Time Distance
Tongue-twisters
United States
Vampire Numbers
Van Eck Sequence
Zodiac Signs
γ
249th
λ
π
545th
3,011th
2,361st
2,227th
1,862nd
1,885th
2,479th
2,106th
2,109th
1,911th
2,475th
2,903rd
2,741st
2,398th
2,265th
2,815th
2,586th
3,044th
1,744th
2,503rd
1,650th
3,216th
2,730th
3,255th
1,823rd
1,508th
439th
3,238th
τ
509th
φ
635th
√2
𝑒
628th